Help request: problems with a 5.1 server and large numbers of
kensmith at cse.Buffalo.EDU
Thu Nov 20 08:41:18 PST 2003
On Thu, Nov 20, 2003 at 10:56:08AM -0500, Robert Watson wrote:
> Hmm. Well, it certainly sounds like a resource limit to me, especially if
> it's a nice round number like "150" or "300".
One possibility might be running out of pseudo-terminals to support
the login sessions. pty's are created as needed I think, and the
code that handles it is in sys/kern/tty_pty.c. The limits on it
appear to be 256 ptys:
* This function creates and initializes a pts/ptc pair
* pts == /dev/tty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv]
* ptc == /dev/pty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv]
* XXX: define and add mapping of upper minor bits to allow more
* than 256 ptys.
I don't know if simply changing the :
static char *names = "pqrsPQRS";
to something longer is all that would be required or if there are
other factors involved.
- From there to here, from here to | kensmith at cse.buffalo.edu
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